Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
050089lightly pollutedexcellent141excellent
040092lightly pollutedexcellent141excellent
030095lightly pollutedexcellent151excellent
020095lightly pollutedexcellent151excellent
010094lightly pollutedexcellent161excellent
0000112moderately pollutedexcellent171excellent
230097lightly pollutedexcellent171excellent
2200109moderately pollutedexcellent171excellent
2100118moderately pollutedexcellent181excellent
2000124moderately pollutedexcellent191excellent
1900117moderately pollutedexcellent181excellent
1800105moderately pollutedexcellent161excellent
170091lightly pollutedexcellent141excellent
160089lightly pollutedexcellent141excellent
150080lightly pollutedexcellent141excellent
140073lightly pollutedexcellent141excellent
130075lightly pollutedexcellent151excellent
120086lightly pollutedexcellent141excellent
110097lightly pollutedexcellent151excellent
1000110moderately pollutedexcellent151excellent
0900112moderately pollutedexcellent131excellent
0800115moderately pollutedexcellent121excellent
0700122moderately pollutedexcellent131excellent
0600123moderately pollutedexcellent121excellent